Malicious PDF — malware analysis report

Static analysis result for SHA-256 95cbe1a29b0ff1f2…

MALICIOUS

PDF

46.4 KB Created: 2021-06-08 16:47:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3d1ee52875859d1ad967539a822b8aa6 SHA-1: e9662777958ee39f16bb1c7c61979840d10d629c SHA-256: 95cbe1a29b0ff1f279c50c825e70de42266cd86c36bc570f4429e59ee6bf285a
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites offering game hacks and generators, a common lure for malicious content. The ML classifier strongly flagged this PDF as malicious. The primary malicious URL identified is https://netcdn.tw/app/431946152/roblox-hack-btools-download-game-hack, which likely serves as a landing page for a secondary payload or further redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.tw/app/431946152/roblox-hack-btools-download-game-hack PDF link annotation
    • http://digilib.akperkabpurworejo.ac.id//repository/descargar-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/pokemon-go-free-incense-promo-code_GM1094591345.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/rbxoffer-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/static-moonactive-net-rewards_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-spin-sites_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/pubg-40-uc_GM1330123889.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/free-executor-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/roblox-website-robux_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/static-moonactive-net_GM406889139.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-make-your-own-minecraft-pe-server-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000515f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x515F 28588 bytes
SHA-256: eeccf72cc232f9b374d72785ad8e40c7c16f55e3be809be47a428f380b2141da
font_01_sfnt_off00009135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9135 18792 bytes
SHA-256: 42e37950d3cdb60f6eb72bca7e1be593b430c36c2809251bc1113bb1b61dd3af

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